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TDK Corporation has introduced the E13 EM series of IGBT and FET gate drive transformers for automotive 500 V battery systems.
The components are designed to provide electrical isolation in traction inverters, isolated DC-DC converters and auxiliary power systems used in xEV platforms. These applications require compact components with reliable insulation, stable signal transmission and resistance to demanding automotive operating conditions.
The E13 EM series uses a compact SMD design based on a MnZn ferrite core. The components have a footprint of 18.6 × 14.6 mm and a maximum height of 12 mm, supporting space-efficient integration in power electronics assemblies.
The series supports typical operating frequencies from 100 kHz to 400 kHz and is available for flyback and push-pull topologies. Depending on the version, inductance values range from approximately 1.8 μH to 240 μH, with saturation currents of up to 9 A. This allows the components to be used across different power architectures.
The transformers are designed with low leakage inductance and optimized winding structures to support stable signal transmission and efficient operation with fast-switching power semiconductors, including IGBTs and MOSFETs.
Insulation is a key feature of the series. The components provide creepage distances of up to 6.3 mm and clearance distances of up to 5.5 mm. They meet the requirements for basic insulation at 500 V DC and reinforced insulation at 300 V, according to IEC 60664-1 and IEC 61558-2-16. They are also specified for transient overvoltages up to 2500 V and a partial discharge extinction voltage of 900 V.
The E13 EM series is qualified to AEC-Q200 Rev. E and designed for operation from -40 °C to +150 °C. It is RoHS compatible and suitable for lead-free reflow soldering according to JEDEC J-STD-020F.
For electric commercial vehicles, these components are relevant in power electronics systems where compact design, isolation, voltage safety and thermal reliability are important, including traction inverters, auxiliary converters and high-voltage xEV platforms.
